Perhaps you should try some spelling variations:
thien chanh » thien thanh, thien chinh, hien hanh
thanh tung » thanh cong
duong cong » dung cong, luong cong, duong trong
hanh mang » nhanh mang, hanh trang, nhanh lang
cua duong » cua dong, cua huong, qua duong
tien anh » tieng anh, tien manh, dien anh
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien chanh) OR (tien anh)) - ((thanh tung) OR (hanh mang)) cua duong cong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien chanh) OR (tien anh)) - ((thanh tung) OR (hanh mang)) cua duong cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien chanh) OR (tien anh)) - ((thanh tung) OR (hanh mang)) cua duong cong dan toan cao*.